<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <title>Reference for objectBoundingBox with fePointLight</title>
  <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=544742 -->

  <defs>
    <filter id="light" primitiveUnits="userSpaceOnUse">
      <feSpecularLighting lighting-color="blue" surfaceScale="5" specularConstant="10" specularExponent="6">
        <fePointLight x="30" y="30" z="-5"/>
      </feSpecularLighting>
      <feComposite operator="in" in2="SourceGraphic"/>
    </filter>
  </defs>

  <g transform="translate(20 20)">
    <rect width="40" height="20" filter="url(#light)" fill="black" stroke="none"/>
  </g>

</svg>

